Mr Limbo,
I understand English is not your first language, but perhaps you could read the reference: "An aircraft Commander may,at his discretion, AND AFTER TAKING NOTE OF THE CIRCUMSTANCES OF OTHER MEMBERS OF THE CREW, extend an FDP beyond that permitted in paragragh 13, Tables A or B, provided he is satisfied that the flight can be made safely". It is the Commander's decision, but he should check that the rest of the team are up for it. He would be very unwise to proceed if they were not and anyway, if you're not fit to fly you have a legal obligation to remover yourself from the flight. Now perhaps we can get me on Mastermind....specialist subject - THE BLEEDING OBVIOUS